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1936
CONDENSING GAS-FIRED STORAGE
WATER HEATER
.
WHC400
WHC500
WHC700
WHC900
ENG - Manual of installation, use and
maintenance.
Read and follow these instructions before installing the unit.
Always keep on hand this manual during any servicing intervention.
This manual is also available in the electronic format and can be downloaded from the website
www.atimariani.it
Jan-19
ATI DI MARIANI SRL - Via E. Mattei, 461 – Zona Industriale No. 4 Torre del Moro - 47522 Cesena (FC) - Italy
Tel .: +39 0547 609711 - Fax: +39 0547 609724 - Web: www.atimariani.it - Email: info@atimariani.it
VAT NR. IT 00281090407 - REA 143693
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Summary of Contents for ATI Technologies WHC500
- Page 1 1936 CONDENSING GAS-FIRED STORAGE WATER HEATER WHC400 WHC500 WHC700 WHC900 ENG - Manual of installation, use and maintenance. Read and follow these instructions before installing the unit. Always keep on hand this manual during any servicing intervention. This manual is also available in the electronic format and can be downloaded from the website www.atimariani.it...
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Page 2: Table Of Contents
ENG - Manual of installation, use and maintenance. INDEX GENERAL WARNINGS ................................. 3 TRANSPORT, STORING AND RECYCLING ............................ 4 CORRECT DISPOSAL OF THE PRODUCT............................4 CONTENT, WEIGHT AND PACKAGING DIMENSIONS ........................5 APPLIANCE CATEGORIES ................................5 TECHNICAL SPECIFICATIONS ..............................6 COUNTRIES OF DESTINATION AND GAS CATEGORIES........................ -
Page 3: General Warnings
ENG - Manual of installation, use and maintenance. 1. GENERAL WARNINGS THIS BOOKLET IS AN INTEGRAL AND ESSENTIAL PART OF THE APPLIANCE AND MUST BE KEPT WITH CARE NEXT TO IT FOR ANY FUTURE REFERENCE. IT CONTAINS IMPORTANT INFORMATION REGARDING SAFETY, INSTALLATION, OPERATION AND MAINTENANCE. THE APPLIANCE IS DESIGNED FOR HOT WATER PRODUCTION ONLY: ANY OTHER USE OF IT IS UNSUITABLE AND DANGEROUS. -
Page 4: Transport, Storing And Recycling
ENG - Manual of installation, use and maintenance. 2. TRANSPORT, STORING AND RECYCLING • The appliance must be transported and stored under cover and protected from frost. • The appliance must not be handled and / or laid horizontally: it can be transported only in a vertical position. •... -
Page 5: Content, Weight And Packaging Dimensions
ENG - Manual of installation, use and maintenance. 4. CONTENT, WEIGHT AND PACKAGING DIMENSIONS The appliance is delivered packaged in a wooden cage with appropriate protection. See table below for size. WHC400 WHC500 WHC700 WHC900 1030 1030 1100 1100 1300... -
Page 6: Technical Specifications
ENG - Manual of installation, use and maintenance. 6. TECHNICAL SPECIFICATIONS WHC400 WHC500 WHC700 WHC900 Classe efficienza sanitaria - efficiency class Profilo di carico - load profile Capacita’ nominale serbatoio - tank nominal capacity Efficienza – efficiency Portata termica nominale Q - nominal calorific flow rate QN... -
Page 7: Appliance Dimensions And Features
ENG - Manual of installation, use and maintenance. 8. APPLIANCE DIMENSIONS AND FEATURES WHC400 WHC500 WHC700 WHC900 A FLUES IN & OUT 1810 1810 1810 1810 B HEIGHT 1699 2049 1754 2114 C HOT WATER OUTLET G 1-1/4” 1585 1936... -
Page 8: The Inside Of The Appliance
ENG - Manual of installation, use and maintenance. 9. THE INSIDE OF THE APPLIANCE The following instructions will show the internal components of the heating boiler, their configuration and maintenance. Remove the frontal casing of the appliance to carry out these interventions. remove the screws from both the left and right side, by means of a common screwdriver (not supplied);... -
Page 9: Functional And Structural Description
ENG - Manual of installation, use and maintenance. 10. FUNCTIONAL AND STRUCTURAL DESCRIPTION The purpose of this appliance is to allow the heat exchange between the combustion products of the premix burner and the water stored in the tank through a heat exchanger that is in contact with the burner. The combustion is completely sealed with respect to the place where the appliance is installed, taking in the air required for combustion from the outside and discharging the combustion products always outside. -
Page 10: Components Of The Boiler
ENG - Manual of installation, use and maintenance. 11. COMPONENTS OF THE BOILER A. CONTROL BOX CASING WATER INLET earthing Copper-brass pipe for the water extraction from the boiler. Protective cover of the electronic control box and point. G. CONDENSATE DRAIN A siphon is located under the boiler: it collects condensate. -
Page 11: Control Panel Display
ENG - Manual of installation, use and maintenance. 12. CONTROL PANEL DISPLAY On / Off (press for 2 seconds) Exit from the information menu Exit from the password menu Exit from the parameter menu + Flow set-point Exit from the chimney sweep + 2nd password digit mode + Parameter Index... - Page 12 ENG - Manual of installation, use and maintenance. LOCAL REGULATIONS The installation must be in accordance with the local regulations established by: Fire fighters Gas Supply Company Power Supply Company Hygiene and Health Office SAFETY REGULATIONS Do not perform any cleaning or maintenance work without having turned off the water heater and cut-off the power. ...
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Page 13: Installation
ENG - Manual of installation, use and maintenance. 14. INSTALLATION OPERATION TO BE CARRIED OUT BY A QUALIFIED PERSON ONLY Warning! The installation of the residential ventilation system must be performed by a qualified person only, in order to avoid damage or injury. -
Page 14: Flue System
ENG - Manual of installation, use and maintenance. 16. FLUE SYSTEM The appliance is a watertight premixed condensing boiler with fan upstream of the combustion chamber, equipped with a storage tank on the back. The low temperature of the exhaust flues allows the use of plastic flue systems. The installation of the flue systems must comply with local regulations in force. - Page 15 ENG - Manual of installation, use and maintenance. The hole for passing the exhaust and the air intake pipe through the wall should not be blocked and the flue pipe must be free to slide through the hole in such a way that it can subsequently be detached. You can use the wall covers supplied with the flue kits to cover the empty space of the hole.
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Page 16: Water Connection
ENG - Manual of installation, use and maintenance. 17. WATER CONNECTION The appliance will last longer if the following parameters are met (as provided by the D. LGS. nr 31 February 2 2001, which is an implementation of EC Directive 98/83/CE on the quality of water intended for human consumption): Total hardness: between 10 °... -
Page 17: Gas Connection
ENG - Manual of installation, use and maintenance. 18. GAS CONNECTION Connect the gas supply line to the thread fitting of the appliance by means of a removable rigid connection: the gas pipe must exit through the slot of the appliance. The gas connection is G 3/4 "and it is covered by a red protection cap. It is recommended to foresee a gas interception manual tap near the appliance along the pipeline in an easily accessible position. -
Page 18: Starting And Temperature Adjustment
ENG - Manual of installation, use and maintenance. 20. STARTING AND TEMPERATURE ADJUSTMENT TURN ON AND TURN OFF The system is powered and it’s on OFF mode, on display control is visualized symbol, the starting burner and all devices are inhibited. - Page 19 ENG - Manual of installation, use and maintenance. Outgoing probe temperature: Device Symbol: Writing at the bottom: "ch" Flame: Device Symbol: Writing at the top: "OFF" if the flame at the burner is not detected Return probe temperature: "On"...
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Page 20: Gas Setting And Changing Of Gas Type
ENG - Manual of installation, use and maintenance. 21. GAS SETTING AND CHANGING OF GAS TYPE CONVERSION OF GAS TYPE To convert the appliance to another gas type it is necessary to replace the injector assembly with the one specially conceived for the gas type supplied by the gas pipeline. - Page 21 ENG - Manual of installation, use and maintenance. At the first ignition it is necessary to check the CO values at the flue gas outlet (the correct values are given in the table above): If the CO2 value (%) read differs from the values given in the table, it is necessary to adjust the gas valve by means of the screws of the maximum and minimum power, which are placed on the gas valve.
- Page 22 ENG - Manual of installation, use and maintenance. MENU PARAMETERS SCREEN Password entry By pressing simultaneously the buttons from the main screen (or even from the “off” screen), you access the password entry screen for the parameters menu. The system has two different passwords: ...
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Page 23: Menu Parameters And Description
ENG - Manual of installation, use and maintenance. 22. MENU PARAMETERS AND DESCRIPTION MENU 01 - "INSTALLER" FOR THE USER AND INSTALLER Index Description Default Range Unit of measurement Minimum percentage of circulator operation [5-100] Time-out for operation in the antilegionella mode [0-240] Minutes "Antifreeze"... - Page 24 ENG - Manual of installation, use and maintenance. MENU 02 - "SETTINGS" RESERVED TO THE INSTALLER Index Description Default Range Unit of measurement ΔT (+ temperature offset) respect to storage set-point for the burner [0-5] ° C turning off ΔT (- temperature offset) respect to storage set-point for the burner [1 - 15] °...
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Page 25: Antilegionella Function
ENG - Manual of installation, use and maintenance. 23. ANTILEGIONELLA FUNCTION Legionella is a bacterium that affects the respiratory system. Prevention of this infection is based on the correct one design and construction of hydro-sanitary systems. The anti-legionella operating status allows to heat the water in the tank to prevent it from being inside proliferate the bacterium. -
Page 26: Electronic Board And Wiring
ENG - Manual of installation, use and maintenance. 24. ELECTRONIC BOARD AND WIRING MOTHERBOARD MI860 DESCRIPTION AND SPARE PARTS P/N Type: Molex 6 poles FUSE Pin: 3. Live 3.15 A @ 250 VAC Rapid 5x20 4. Neutral Main power supply (L, N) 900-0095 Voltage: High (230 V Description: board main power supply Circulation pump power supply (CI) 900-0095... - Page 27 ENG - Manual of installation, use and maintenance. Fan Driver (V-REG) 900-0096 (AE) 900-0097 Igniter Description: Contacts for fan speed adjustment by PWM Description: high efficiency electronics ignitor modulation and input signal coming from the Hall sensor. Contacts: J59 Connector Contacts: J1 Connector Type: Stocko 5 poles...
- Page 28 ENG - Manual of installation, use and maintenance. Boiler probe 1 (SS1) 900-0107 Control board (LCD) 900-0101 Description: Probe that measures the water temperature of Description: to display Back-lighted LCD control board the boiler (at the bottom). information and carry out any adjustment and setting with pushbuttons.
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Page 29: Other System Features
ENG - Manual of installation, use and maintenance. failure. Whenever a fault occurs, the back-lighting of the 25. OTHER SYSTEM FEATURES display is activated for ten seconds, then it turns off. POST-CIRCULATION 27. SAFETY ANOMALIES The boiler pump post-circulation function is useful to dissipate the water exceeding heat in the circuit after an These anomalies relate to the operating cycle (safety) of operating phase with burner. - Page 30 ENG - Manual of installation, use and maintenance. DISPLAYS FAULT F025 The message "Err." appears alternately with the message DESCRIPTION Fan speed lower than the minimum safety threshold (with "F022". The flashing fault symbol and the flashing burner in full operation) flame failure symbol are displayed.
- Page 31 ENG - Manual of installation, use and maintenance. DISPLAYS The anomaly occurs, if the safety microcontroller and thermoregulation microprocessor are not The message "Err." appears alternately with the message communicating properly after 30 seconds. The anomaly is deactivated when communication "F026".
- Page 32 ENG - Manual of installation, use and maintenance. FAULT F059 Fan: if foreseen, a post-purge cycle is performed, then it is deactivated. DESCRIPTION Circulation pump: it performs a post-circulation cycle, if Lockout for rapid increase at the flow probe temperature foreseen, then it turns off.
- Page 33 ENG - Manual of installation, use and maintenance. congruent with the written one, the anomaly FAULT F098 activates. DESCRIPTION This anomaly is deactivated if, in view of a new operation towards the EEPROM, the data is Flow/safety double sensor interrupted or short-circuited → properly stored.
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Page 34: Probes Faults
ENG - Manual of installation, use and maintenance. "Err." appears alternating with the message "F099". The sensor resistive value ≤ 400 Ω The anomaly is deactivated if: sensor resistive value > 400 Ω flashing fault symbol and the flashing sensor fault symbol are displayed. - Page 35 ENG - Manual of installation, use and maintenance. FAULT F035 The anomaly occurs if: sensor resistive value ≥ 47 kΩ DESCRIPTION The anomaly is deactivated if: sensor resistive value <47 kΩ Overheated boiler probe. DISPLAYS ACTIVATION / DEACTIVATION CONDITIONS "Err."...
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Page 36: Fan Faults
ENG - Manual of installation, use and maintenance. FAULT F037 Gas valve: Off. DESCRIPTION Fan: If the demand is still active, the system tries to bring the fan to the ignition speed in order to try a new burner Short-circuited flues probe ignition. - Page 37 ENG - Manual of installation, use and maintenance. DISPLAYS FAULT F064 "Err." appears alternating with the message "F062”. The DESCRIPTION flashing fault symbol and the flashing symbol of Fan not working. fan failure are displayed. ACTIVATION / DEACTIVATION CONDITIONS DEVICES ...
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Page 38: Faults Flow
ENG - Manual of installation, use and maintenance. Fan: Off. 30. FAULTS FLOW These anomalies involve the flowmeter for measuring the water flow rate. FAULT F083 DESCRIPTION Faulty flowmeter. ACTIVATION / DEACTIVATION CONDITIONS The anomaly occurs if the board detects from the flowmeter a number of impulses per second higher than or equal to 500. -
Page 39: Servicing The Heat Exchanger
ENG - Manual of installation, use and maintenance. 31. SERVICING THE HEAT EXCHANGER In case of particularly hard water, it is necessary to perform the cleaning of the exchanger periodically. This type of cleaning is performed by means of a 3-way valve installed in the appliance, used to circulate a descaling detergent. Use detergents suitable for limestone cleaning only, not aggressive towards materials such as steel, copper and brass. - Page 40 ATI DI MARIANI SRL declares under its own responsibility that the product the water heater mod. WHC 400 WHC 500 WHC 700 WHC 900 complies with European directives: 2009/142 / EC - Gas Appliances 2006/95 / EC - Low Voltage Directive 2004/108 / EC - Electromagnetic Compatibility Directive ATI DI MARIANI SRL Via E.
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